OK I understand what you’re trying to say now. I think the reason you’re feeling that way is because of the way Wide Dynamic Range Compression works. This is not just an OPN thing. All hearing aids brands use this technology.
You can Google it to understand it better. But in short, a normal ear has a very wide dynamic range because it can hear anything between about 0dB to 120dB, hence a 120 dB dynamic range.
Your right ear, on the other hand, has about an average of around 60 dB loss. So anything below 60 dB has to be amplified. Softer sounds amplified as much as 60dB before you can hear anything. Louder sounds amplified less. But basically the right ear dynamic range has to be compressed in between 60 dB to around 120 dB, or a dynamic range of 60 dB.
Of course you have different loss at different frequencies, so the compressed dynamic range varies at different frequencies. I’m just talking about a single average number here for simplicity’s sake.
Your left ear has an average of about 80dB loss. So the dynamic range there is compressed even further to only about 40dB.
I’m not a hearing professional, but I’m guessing that this is what you’re perceiving when you take out your right hearing aid -> the very limited compressed dynamic range of only 40dB in your left ear. And you feel like you can hear better with your right ear because it has 1.5 times the left ear’s compressed dynamic range, at 60 dB compressed range.
I don’t think there’s really anything the audi can adjust to improve this because the WDRC is set automatically by the hearing aid and it’s a physical limitation of your heating loss that results in a much smaller dynamic range.
I’m not sure if going to a 100 or 105dB receiver will help. I think that it depends on what your Maximum Comfort Level is at (usually it can be up to 120 dB or maybe lower depending on the individual). If it’s at a higher level than the 85dB receiver can boost up to, but the 100dB receiver can deliver up to, then maybe the 100dB receiver can give you a little wider dynamic range due to the extra headroom. You can ask your audi about this.
Below is an illustration of WDRC